# SetTypeDefaultVersion


Specify the default version of an extension. The default version of an extension will be used in CloudFormation operations.

## Request Parameters


 For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).

 ** Arn **   
The Amazon Resource Name (ARN) of the extension for which you want version summary information.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Length Constraints: Maximum length of 1024.  
Pattern: `arn:aws[A-Za-z0-9-]{0,64}:cloudformation:[A-Za-z0-9-]{1,64}:[0-9]{12}:type/.+`   
Required: No

 ** Type **   
The kind of extension.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Valid Values: `RESOURCE | MODULE | HOOK`   
Required: No

 ** TypeName **   
The name of the extension.  
Conditional: You must specify either `TypeName` and `Type`, or `Arn`.  
Type: String  
Length Constraints: Minimum length of 10. Maximum length of 204.  
Pattern: `[A-Za-z0-9]{2,64}::[A-Za-z0-9]{2,64}::[A-Za-z0-9]{2,64}(::MODULE){0,1}`   
Required: No

 ** VersionId **   
The ID of a specific version of the extension. The version ID is the value at the end of the Amazon Resource Name (ARN) assigned to the extension version when it is registered.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 128.  
Pattern: `[A-Za-z0-9-]+`   
Required: No

## Errors


For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).

 ** CFNRegistry **   
An error occurred during a CloudFormation registry operation.    
 ** Message **   
A message with details about the error that occurred.
HTTP Status Code: 400

 ** TypeNotFound **   
The specified extension doesn't exist in the CloudFormation registry.  
HTTP Status Code: 404

## Examples


### SetTypeDefaultVersion


This example illustrates one usage of SetTypeDefaultVersion.

#### Sample Request


```
https://cloudformation.us-east-1.amazonaws.com/
 ?Action=SetTypeDefaultVersion
 &Version=2010-05-15
 &TypeName=My::Resource::Example
 &VersionId=00000003
 &Type=RESOURCE
 &X-Amz-Algorithm=AWS4-HMAC-SHA256
 &X-Amz-Credential=[Access key ID and scope]
 &X-Amz-Date=20191204T182814Z
 &X-Amz-SignedHeaders=content-type;host
 &X-Amz-Signature=[Signature]
```

#### Sample Response


```
<SetTypeDefaultVersionResponse xmlns="http://cloudformation.amazonaws.com/doc/2010-05-15/">
  <SetTypeDefaultVersionResult/>
  <ResponseMetadata>
    <RequestId>dc46ff50-4ab3-485a-a104-bbbd3example</RequestId>
  </ResponseMetadata>
</SetTypeDefaultVersionResponse>
```

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/cloudformation-2010-05-15/SetTypeDefaultVersion) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/cloudformation-2010-05-15/SetTypeDefaultVersion)